[wp-trac] [WordPress Trac] #42965: Widgets not restored to previous widget area after switching back to previous theme

[WordPress Trac]

#42965: Widgets not restored to previous widget area after switching back to
previous theme
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 Reporter:  probewise     |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  4.9.2
Component:  Widgets       |     Version:  4.9
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:
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Comment (by obenland):

 Replying to [comment:4 westonruter]:
 > I thought the algorithm for restoring widgets was first assigning
 widgets back to their previous locations before then trying to re-assign
 any newly-created widgets using best guessing?

 No it doesn't, it maps first and then tries to revive. The idea behind
 that was that presumably widget assignments change more often than themes
 are being switched, and switching themes back and forth was mitigated by
 the Customizer.
 Switching that would also change the order of widgets, with previously
 existing ones being added first and new ones appended.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42965#comment:7>
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